Scott on the Birds of Arizona. 1 67 



this plumage is retained and in July another moult makes all the hirds 

 gray or lead-colored again. Though so common a form I was unable 

 to find nests, but have taken young fully fledged during the first week in 

 June. 



240. Myadestes townsendii. Townsend's Solitaire. — My notes on 

 this species are from Mineral Creek, in the Pinal Mountains, where it was 

 not uncoinmon during late October and part of November, 1S82. In the 

 Santa Catalinas it was rather a rare species in spring, fall, and winter, 

 and I did not observe it during the warmer portion of the year. I also ob- 

 served it as a rare species in the pine forests of the Catalinas from Novem- 

 ber 3 to 8, 1885. 



241. Turdus fuscescens salicicolus. Willow Thrush. A single 

 specimen (female) was taken by Mr. Herbert Brown at Tucson, early in 

 May, 1S82. No others have come under niy notice. The specimen is 

 now in my collection (No. 4073). 



242. Turdus aonalaschkae. Dwarf Hermit Thrush. — A common 

 winter resident in the Catalina region, altitude 4500 feet. The earliest 

 record is October 27, and the latest March 14. Mr. Brown has taken it 

 about Tucson in January. 



243. Turdus aonalaschkae auduboni. Audubon's Hermit Thrush. — 

 Not common. Probably the resident form, although the on\y specimens 

 taken were obtained in spring, as follows: No. 2022, J, March 30, 18S5 ; 

 No. 2234, ? , April 22, 1SS5 ; No. 2350, $ , April 30, 18S6. 



[In a series of over 30 specimens of Hermit Thrushes in the Scott Col- 

 lection only three are referable to var. auduboni. The others are all 

 strictly referable to aonalaschkcn.—]. A. A. 



244. Merula migratoria propinqua. Western Robin. — This form of 

 the Robin I found to be a regular fall, winter, and early spring resident in 

 the Catalinas, altitude 3500 to 6000 feet. They arrive here in the fall 

 about November 1, and are soon quite common in small flocks or compa- 

 nies. All through the winter they are more or less common, but towards 

 spring their numbers seem to be very considerably increased, and they 

 are quite common until late in March, and are to be seen sparingly during 

 the first week in April. I have frequently heard the males beginning to 

 sing before they left this point, and on one occasion a single Robin was 

 noted May 5, 1885. 



I have observed the species in the pine forests of the Catalinas in No- 

 vember, and on the San Pedro River in January. They are, though reg- 

 ular visitors, much more abundant some seasons than others, and were 

 especially common during the winter of 1885-86. 



245. Sialia mexicana. Western Bluebird. — A common migrant on 

 the foothills of the mountain ranges, where it is a winter resident. The 

 lowest altitude where I have met them is on the San Pedro River, in Janu- 

 ary, 1886. They also breed in small numbers in the Catalinas, as I took a 

 young bird of this species on July- 4, 1884. altitude 5000 feet. (Also see 

 Auk, Vol. II, No. 4, p. 349, Oct. 1885.) In the same locality the birds 

 appear in flocks about the middle of October and remain until the last of 

 March. 



